FLT TAR model. Approximately 15K daily driven miles with 4 AutoX sessions, no track time. The shock bodies are still in great condition, no blown seals. The height of the coils is at the lowest Mueller was willing go, control arms parallel to the ground. Threads are dirty not rusted, it'll come off with a little elbow grease. Driver side dampening adjustment is a tad stiff and I lost the supplied Allen key. The issue I had with the setup was a slight rattle in the rear going over bumps. Mueller insisted on two occasions it wasn't the coils but my car making the noises. Go figure , $450.00. Text/Call 626-378-4737